CVE-2023-52691
drm/amd/pm: fix a double-free in si_dpm_init
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Description
In the Linux kernel, the following vulnerability has been resolved: drm/amd/pm: fix a double-free in si_dpm_init When the allocation of adev->pm.dpm.dyn_state.vddc_dependency_on_dispclk.entries fails, amdgpu_free_extended_power_table is called to free some fields of adev. However, when the control flow returns to si_dpm_sw_init, it goes to label dpm_failed and calls si_dpm_fini, which calls amdgpu_free_extended_power_table again and free those fields again. Thus a double-free is triggered.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://git.kernel.org/stable/c/06d95c99d5a4f5accdb79464076efe62e668c706
- https://git.kernel.org/stable/c/2bf47c89bbaca2bae16581ef1b28aaec0ade0334
- https://git.kernel.org/stable/c/ac16667237a82e2597e329eb9bc520d1cf9dff30
- https://git.kernel.org/stable/c/aeed2b4e4a70c7568d4a5eecd6a109713c0dfbf4
- https://git.kernel.org/stable/c/afe9f5b871f86d58ecdc45b217b662227d7890d0
References (10)
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